施工技术
施工技術
시공기술
CONSTRUCTION TECHNOLOGY
2014年
21期
82-85
,共4页
深水承台%围堰%排桩%壁板%卵石地层%施工技术
深水承檯%圍堰%排樁%壁闆%卵石地層%施工技術
심수승태%위언%배장%벽판%란석지층%시공기술
deepwater caps%cofferdams%row piles%modular wall%gravel%construction
以兰州市元通黄河大桥两个主桥桥墩为例，介绍了在分选良好的大粒径卵石层中施工桥梁深水承台时采用连续排桩加壁板组合式围堰施工技术，实现了承台无水干作业施工，给出了施工中防止因施工控制导致渗漏的注意事项及封堵方法。实践证明，该方法工艺简单，安全性及止水效果好，经济效益明显。
以蘭州市元通黃河大橋兩箇主橋橋墩為例，介紹瞭在分選良好的大粒徑卵石層中施工橋樑深水承檯時採用連續排樁加壁闆組閤式圍堰施工技術，實現瞭承檯無水榦作業施工，給齣瞭施工中防止因施工控製導緻滲漏的註意事項及封堵方法。實踐證明，該方法工藝簡單，安全性及止水效果好，經濟效益明顯。
이란주시원통황하대교량개주교교돈위례，개소료재분선량호적대립경란석층중시공교량심수승태시채용련속배장가벽판조합식위언시공기술，실현료승태무수간작업시공，급출료시공중방지인시공공제도치삼루적주의사항급봉도방법。실천증명，해방법공예간단，안전성급지수효과호，경제효익명현。
Combining with two main bridge piers of Yuantong Yellow River Bridge in Lanzhou, this paper introduced construction technology of deepwater continuous row pile cap and modular wall cofferdam for bridge in good sorted large gravel layer. Thus the deepwater cap can be constructed in dry conditions. And the anti?seepage attentions and closure method are pointed out during construction. It proves that the construction process is simple with safety and good effects of water proofing, which has significant economic benefits.
